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If you’re a premium member of the lynda.com Online Training Library, or if you’re

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watching this tutorial on a DVD-ROM, you have access to the exercise files used

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throughout this title.

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The exercise files are organized by chapter, and I suggest that you copy them to

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your desktop and work with them from there.

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Each chapter has number of files in it.

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For example, here in the Chapter 6, there are three files, and by and large these

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files are Python scripts code.

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We’ll be using these files from inside of Eclipse.

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Eclipse is an integrated development environment, and I’ll show you how to

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import the files into Eclipse in the movie on installing Eclipse.

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You do not have to use Eclipse to follow along with this title.

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You can use whatever editor or whatever development environment you choose.

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I use Eclipse because it’s platform- independent, and it’s portable, and it’s

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easy to use for teaching, but you do not have to use Eclipse to follow along in this title.

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Whenever I open a file in this title, I start by making a copy of the file and

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then work with the working copy.

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I do this by dragging the file while holding down the Control key on a PC or the

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Command key on a Mac and then let it go, and this will give me an opportunity to

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choose a name for the copy, and I typically use the same name with a dash and the

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name working, and end it with .PY.

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By doing this and working with the working copy, the original files are left

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unchanged, and this way you can go through the exercises again at a later time if

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you choose to do that.

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If you don’t have access to the exercise files, you can follow along from

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scratch, or with your own assets.

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So, let’s get started.